bool wxSTEditorShell::SetMaxLines(int max_lines)
{
m_max_lines = max_lines;
if (m_max_lines < 0) return false;
int total_lines = GetLineCount();
total_lines = wxMax(0, total_lines-1);
// delete lines when more than m_max_lines, you'll eventually crash otherwise
if (total_lines > m_max_lines)
{
BeginWriteable();
int marker = MarkerGet(total_lines - m_max_lines);
SetTargetStart(0);
SetTargetEnd(PositionFromLine(total_lines - m_max_lines));
ReplaceTarget(wxEmptyString);
// wipe marker that has moved up if there shouldn't be a marker
if ((marker & (1<<markerPrompt)) == 0)
MarkerDelete(0, markerPrompt);
EndWriteable();
return true;
}
return false;
}
void wxSTEditorShell::SetPromptText(const wxString& text)
{
BeginWriteable();
int length = GetLength();
wxString promptText = GetPromptText();
SetTargetStart(length - promptText.Length());
SetTargetEnd(length);
ReplaceTarget(text);
GotoPos(GetLength());
EndWriteable();
}
void wxSTEditorShell::AppendText(const wxString &text)
{
BeginWriteable(); // make it writeable
wxSTEditor::AppendText(text); // write the text
SetMaxLines(GetMaxLines()); // check for line count overflow
GotoPos(GetLength()); // put cursor at end
EmptyUndoBuffer(); // don't let them undo what you wrote!
// but they can undo their own typing
EndWriteable(); // end the writeable state
}
void wxSTEditorShell::SetPromptText(const wxString& text)
{
BeginWriteable();
int length = GetLength();
int prompt_line = GetPromptLine();
int start_pos = PositionFromLine(prompt_line);
SetTargetStart(start_pos);
SetTargetEnd(length);
ReplaceTarget(text);
GotoPos(GetLength());
EndWriteable();
}
